package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.service.CategoryService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * 分类管理
 */
@RestController
@Slf4j
@RequestMapping("/category")
public class CategoryController {
    @Autowired
    private CategoryService categoryService;

    /**
     * 新增分类
     * @param category
     * @return
     */
    @PostMapping
    public R<String> save( @RequestBody Category category){
        log.info("新增分类 {}",category);
        categoryService.save(category);
        return R.success("新增分类成功");
    }

    /**
     * 分页查询
     * @param page
     * @param pageSize
     * @return
     */
    @GetMapping("/page")
    public R<Page> selectByPage(Integer page,Integer pageSize){
        //构建分页构造器
        Page pageInfo=new Page(page,pageSize);
        //构造条件构造器
        LambdaQueryWrapper<Category> lqw = new LambdaQueryWrapper<>();
        lqw.orderByAsc(Category::getSort);
        //分页查询
        categoryService.page(pageInfo,lqw);
        return R.success(pageInfo);
    }

    /**
     * 删除分类
     * @param id
     * @return
     */
    @DeleteMapping
    public R<String> delete(Long id){
        //自定义删除接口方法
        categoryService.removeCategoryId(id);
        return  R.success("分类删除成功");
    }

    /**
     * 修改分类
     * @param category
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody Category category){
        categoryService.updateById(category);
        return R.success("修改分类成功");
    }

    /**
     * 查询分类菜品到新增菜品页面
     * @param category
     * @return
     */
    @GetMapping("/list")
    public R<List<Category>> list( Category category){
        //条件构造器
        LambdaQueryWrapper<Category> clqw = new LambdaQueryWrapper<>();
        clqw.eq(category.getType()!=null,Category::getType,category.getType());
        clqw.orderByAsc(Category::getSort).orderByDesc(Category::getCreateTime);
        List<Category> list = categoryService.list(clqw);
        return R.success(list);
    }
}
